Problem 3.261

In an electromagnetic pump designed for transferring molten metals a pipe section with metal is located in a uniform magnetic field of induction \(B\) (Fig. 3.73). A current \(I\) is made to flow across this pipe section in the direction perpendicular both to the vector \(B\) and to the axis of the pipe. Find the gauge pressure produced by the pump if \(B=0.10 \mathrm{~T}, I=100 \mathrm{~A},\) and \(a=2.0 \mathrm{~cm}\)